Question

Farmer john's son built a track to walk his pet pig. The track goes around the rectangular pig pen. The pig pen is 15 ft long and 21 ft wide, if the pig walks all the way around the track,how many feet did he walk? A.36 B.72 C.144 D.315

Answer 1

Answer: (b)

Step-by-step explanation:

Given

dimension of Pig pen is $l=15\ ft$

width $w=21\ ft$

Pig walks around the perimeter

and perimeter of the rectangular area is  $2(l+w)$

Pig walks

$P=2(15+21)\\P=2\times 36=72\ ft$